import redis.asyncio as aioredis

from core.config import settings

_redis_pool: aioredis.Redis | None = None

async def init_redis() -> None:
    global _redis_pool
    _redis_pool = aioredis.from_url(
        settings.REDIS_URL, encoding="utf-8", decode_responses=True
    )


async def close_redis() -> None:
    if _redis_pool:
        await _redis_pool.aclose()


async def get_redis() -> aioredis.Redis:
    if _redis_pool is None:
        raise RuntimeError("Redis pool has not been initialized")
    return _redis_pool